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package com.macro.mall.component;
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import com.macro.mall.bo.WebLog;
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import com.macro.mall.util.JsonUtil;
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import com.macro.mall.util.RequestUtil;
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import io.swagger.annotations.ApiOperation;
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import net.logstash.logback.marker.Markers;
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import org.aspectj.lang.JoinPoint;
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import org.aspectj.lang.ProceedingJoinPoint;
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import org.aspectj.lang.Signature;
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import org.aspectj.lang.annotation.*;
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import org.aspectj.lang.reflect.MethodSignature;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.core.annotation.Order;
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import org.springframework.stereotype.Component;
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import org.springframework.util.StringUtils;
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import org.springframework.web.bind.annotation.RequestBody;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.context.request.RequestContextHolder;
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import org.springframework.web.context.request.ServletRequestAttributes;
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import javax.servlet.http.HttpServletRequest;
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import java.lang.reflect.Method;
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import java.lang.reflect.Parameter;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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/**
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* 统一日志处理切面
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* Created by macro on 2018/4/26.
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*/
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@Aspect//将java类定义为切面类
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@Component
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@Order(1)
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public class WebLogAspect {
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private static final Logger LOGGER = LoggerFactory.getLogger(WebLogAspect.class);
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private ThreadLocal<Long> startTime = new ThreadLocal<>();
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/**
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* 定义一个切入点
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* ~第一个*代表任意修饰符及任意返回值
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* ~第二个*代表在controller包或者子包
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* ~第三个*代表任意方法
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* ~..匹配任意数量的参数
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*/
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@Pointcut("execution(public * com.macro.mall.controller.*.*(..))")
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public void webLog() {
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}
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@Before("webLog()")
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public void doBefore(JoinPoint joinPoint) throws Throwable {
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startTime.set(System.currentTimeMillis());
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}
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@AfterReturning(value = "webLog()", returning = "ret")
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public void doAfterReturning(Object ret) throws Throwable {
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}
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@Around("webLog()")
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public Object doAround(ProceedingJoinPoint joinPoint) throws Throwable {
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//获取当前请求对象
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ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
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HttpServletRequest request = attributes.getRequest();
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//记录请求信息(通过logstash传入elasticsearch)
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WebLog webLog = new WebLog();
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Object result = joinPoint.proceed();
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Signature signature = joinPoint.getSignature();
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MethodSignature methodSignature = (MethodSignature) signature;
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Method method = methodSignature.getMethod();
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if (method.isAnnotationPresent(ApiOperation.class)) {
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ApiOperation log = method.getAnnotation(ApiOperation.class);
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webLog.setDescription(log.value());
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}
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long endTime = System.currentTimeMillis();
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webLog.setBasePath(RequestUtil.getBasePath(request));
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webLog.setIp(request.getRemoteUser());
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webLog.setMethod(request.getMethod());
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webLog.setParameter(getParameter(method, joinPoint.getArgs()));
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webLog.setResult(result);
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webLog.setSpendTime((int) (endTime - startTime.get()));
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webLog.setStartTime(startTime.get());
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webLog.setUri(request.getRequestURI());
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webLog.setUrl(request.getRequestURL().toString());
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Map<String,Object> logMap = new HashMap<>();
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logMap.put("url",webLog.getUrl());
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logMap.put("method",webLog.getMethod());
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logMap.put("parameter",webLog.getParameter());
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logMap.put("spendTime",webLog.getSpendTime());
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logMap.put("description",webLog.getDescription());
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// LOGGER.info("{}", JsonUtil.objectToJson(webLog));
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LOGGER.info(Markers.appendEntries(logMap),JsonUtil.objectToJson(webLog));
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return result;//处理完请求，返回内容
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}
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/**
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* 根据方法和传入的参数获取请求参数
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*/
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private Object getParameter(Method method, Object[] args) {
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List<Object> argList = new ArrayList<>();//ArrayList[]是LIst[Object]的子类
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Parameter[] parameters = method.getParameters();
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for (int i = 0; i < parameters.length; i++) {
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RequestBody requestBody = parameters[i].getAnnotation(RequestBody.class);//getAnnotation用于返回元素的指定类型的注释
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if (requestBody != null) {//对应Http请求body不为空
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argList.add(args[i]);//增加
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}
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RequestParam requestParam = parameters[i].getAnnotation(RequestParam.class);
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if (requestParam != null) {//请求参数不为空
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Map<String, Object> map = new HashMap<>(); //map容器
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String key = parameters[i].getName();//获取名称
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if (!StringUtils.isEmpty(requestParam.value())) {//值不空，key返回参数值
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key = requestParam.value();
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}
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map.put(key, args[i]);//将argue[i]放入key中
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argList.add(map);//增加一个map，map中放着i=n时的arg值
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}
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}
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if (argList.size() == 0) {//长度为0时，返回空
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return null;
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} else if (argList.size() == 1) {//长度为1时，返回整张表的值
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return argList.get(0);
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} else {
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return argList;
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}
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}
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}
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